27 lines
677 B
C++
27 lines
677 B
C++
// Copyright Louis Dionne 2013-2017
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
|
|
|
|
#include <boost/hana/fold_left.hpp>
|
|
#include <boost/hana/basic_tuple.hpp>
|
|
namespace hana = boost::hana;
|
|
|
|
|
|
struct f {
|
|
template <typename State, typename X>
|
|
constexpr X operator()(State, X x) const { return x; }
|
|
};
|
|
|
|
struct state { };
|
|
|
|
template <int i>
|
|
struct x { };
|
|
|
|
int main() {
|
|
constexpr auto tuple = hana::make_basic_tuple(
|
|
<%= (1..input_size).map { |n| "x<#{n}>{}" }.join(', ') %>
|
|
);
|
|
constexpr auto result = hana::fold_left(tuple, state{}, f{});
|
|
(void)result;
|
|
}
|